The Experts below are selected from a list of 8238 Experts worldwide ranked by ideXlab platform
J. Viña - One of the best experts on this subject based on the ideXlab platform.
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Computational models for mode I composite fracture failure: the virtual crack closure technique versus the two-step Extension Method
Meccanica, 2010Co-Authors: J. Bonhomme, A. Argüelles, M. A. Castrillo, J. ViñaAbstract:This paper deals with the numerical determination of the energy release rate under mode I in carbon fibre reinforced composites (CFRC). Two different models are reviewed: the virtual crack closure technique (VCCT) and the Two-step Extension Method. The Two-step Extension Method needs two computational steps in order to calculate the energy release rate ( G ). The VCCT Method is able to provide ERR value only from one computational step. Results were compared with empirical data obtained from double cantilever beam (DCB) tests carried out on unidirectional AS4/8552 carbon/epoxy laminates. This study showed that, in a pure mode I state, results obtained via the Two-step Extension Method were in agreement with a straightforward calculation of the elastic energy variation in the system. As expected, results obtained from VCCT and Two-step Extension models converge as element length decreases. Regarding the comparison between experimental and numerical results, the study showed that a correction for testing devices compliance was needed to match both models.
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computational models for mode i composite fracture failure the virtual crack closure technique versus the two step Extension Method
Meccanica, 2010Co-Authors: J. Bonhomme, A. Argüelles, M. A. Castrillo, J. ViñaAbstract:This paper deals with the numerical determination of the energy release rate under mode I in carbon fibre reinforced composites (CFRC). Two different models are reviewed: the virtual crack closure technique (VCCT) and the Two-step Extension Method. The Two-step Extension Method needs two computational steps in order to calculate the energy release rate (G). The VCCT Method is able to provide ERR value only from one computational step. Results were compared with empirical data obtained from double cantilever beam (DCB) tests carried out on unidirectional AS4/8552 carbon/epoxy laminates. This study showed that, in a pure mode I state, results obtained via the Two-step Extension Method were in agreement with a straightforward calculation of the elastic energy variation in the system. As expected, results obtained from VCCT and Two-step Extension models converge as element length decreases. Regarding the comparison between experimental and numerical results, the study showed that a correction for testing devices compliance was needed to match both models.
Nikita Barabanov - One of the best experts on this subject based on the ideXlab platform.
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State Space Extension Method in the Theory of Absolute Stability
IFAC Proceedings Volumes, 2001Co-Authors: Nikita BarabanovAbstract:Abstract State space Extension Method is applied to construct new quadratic constraints and derive new frequency domain criteria for absolute stability.
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The state space Extension Method in the theory of absolute stability
IEEE Transactions on Automatic Control, 2000Co-Authors: Nikita BarabanovAbstract:This paper shows how the state space Extension Method can be used to derive frequency domain criteria for stability of systems with different kinds of uncertainties. The main result is illustrated by a number of examples.
J. Bonhomme - One of the best experts on this subject based on the ideXlab platform.
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Computational models for mode I composite fracture failure: the virtual crack closure technique versus the two-step Extension Method
Meccanica, 2010Co-Authors: J. Bonhomme, A. Argüelles, M. A. Castrillo, J. ViñaAbstract:This paper deals with the numerical determination of the energy release rate under mode I in carbon fibre reinforced composites (CFRC). Two different models are reviewed: the virtual crack closure technique (VCCT) and the Two-step Extension Method. The Two-step Extension Method needs two computational steps in order to calculate the energy release rate ( G ). The VCCT Method is able to provide ERR value only from one computational step. Results were compared with empirical data obtained from double cantilever beam (DCB) tests carried out on unidirectional AS4/8552 carbon/epoxy laminates. This study showed that, in a pure mode I state, results obtained via the Two-step Extension Method were in agreement with a straightforward calculation of the elastic energy variation in the system. As expected, results obtained from VCCT and Two-step Extension models converge as element length decreases. Regarding the comparison between experimental and numerical results, the study showed that a correction for testing devices compliance was needed to match both models.
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computational models for mode i composite fracture failure the virtual crack closure technique versus the two step Extension Method
Meccanica, 2010Co-Authors: J. Bonhomme, A. Argüelles, M. A. Castrillo, J. ViñaAbstract:This paper deals with the numerical determination of the energy release rate under mode I in carbon fibre reinforced composites (CFRC). Two different models are reviewed: the virtual crack closure technique (VCCT) and the Two-step Extension Method. The Two-step Extension Method needs two computational steps in order to calculate the energy release rate (G). The VCCT Method is able to provide ERR value only from one computational step. Results were compared with empirical data obtained from double cantilever beam (DCB) tests carried out on unidirectional AS4/8552 carbon/epoxy laminates. This study showed that, in a pure mode I state, results obtained via the Two-step Extension Method were in agreement with a straightforward calculation of the elastic energy variation in the system. As expected, results obtained from VCCT and Two-step Extension models converge as element length decreases. Regarding the comparison between experimental and numerical results, the study showed that a correction for testing devices compliance was needed to match both models.
M. A. Castrillo - One of the best experts on this subject based on the ideXlab platform.
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Computational models for mode I composite fracture failure: the virtual crack closure technique versus the two-step Extension Method
Meccanica, 2010Co-Authors: J. Bonhomme, A. Argüelles, M. A. Castrillo, J. ViñaAbstract:This paper deals with the numerical determination of the energy release rate under mode I in carbon fibre reinforced composites (CFRC). Two different models are reviewed: the virtual crack closure technique (VCCT) and the Two-step Extension Method. The Two-step Extension Method needs two computational steps in order to calculate the energy release rate ( G ). The VCCT Method is able to provide ERR value only from one computational step. Results were compared with empirical data obtained from double cantilever beam (DCB) tests carried out on unidirectional AS4/8552 carbon/epoxy laminates. This study showed that, in a pure mode I state, results obtained via the Two-step Extension Method were in agreement with a straightforward calculation of the elastic energy variation in the system. As expected, results obtained from VCCT and Two-step Extension models converge as element length decreases. Regarding the comparison between experimental and numerical results, the study showed that a correction for testing devices compliance was needed to match both models.
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computational models for mode i composite fracture failure the virtual crack closure technique versus the two step Extension Method
Meccanica, 2010Co-Authors: J. Bonhomme, A. Argüelles, M. A. Castrillo, J. ViñaAbstract:This paper deals with the numerical determination of the energy release rate under mode I in carbon fibre reinforced composites (CFRC). Two different models are reviewed: the virtual crack closure technique (VCCT) and the Two-step Extension Method. The Two-step Extension Method needs two computational steps in order to calculate the energy release rate (G). The VCCT Method is able to provide ERR value only from one computational step. Results were compared with empirical data obtained from double cantilever beam (DCB) tests carried out on unidirectional AS4/8552 carbon/epoxy laminates. This study showed that, in a pure mode I state, results obtained via the Two-step Extension Method were in agreement with a straightforward calculation of the elastic energy variation in the system. As expected, results obtained from VCCT and Two-step Extension models converge as element length decreases. Regarding the comparison between experimental and numerical results, the study showed that a correction for testing devices compliance was needed to match both models.
A. Argüelles - One of the best experts on this subject based on the ideXlab platform.
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Computational models for mode I composite fracture failure: the virtual crack closure technique versus the two-step Extension Method
Meccanica, 2010Co-Authors: J. Bonhomme, A. Argüelles, M. A. Castrillo, J. ViñaAbstract:This paper deals with the numerical determination of the energy release rate under mode I in carbon fibre reinforced composites (CFRC). Two different models are reviewed: the virtual crack closure technique (VCCT) and the Two-step Extension Method. The Two-step Extension Method needs two computational steps in order to calculate the energy release rate ( G ). The VCCT Method is able to provide ERR value only from one computational step. Results were compared with empirical data obtained from double cantilever beam (DCB) tests carried out on unidirectional AS4/8552 carbon/epoxy laminates. This study showed that, in a pure mode I state, results obtained via the Two-step Extension Method were in agreement with a straightforward calculation of the elastic energy variation in the system. As expected, results obtained from VCCT and Two-step Extension models converge as element length decreases. Regarding the comparison between experimental and numerical results, the study showed that a correction for testing devices compliance was needed to match both models.
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computational models for mode i composite fracture failure the virtual crack closure technique versus the two step Extension Method
Meccanica, 2010Co-Authors: J. Bonhomme, A. Argüelles, M. A. Castrillo, J. ViñaAbstract:This paper deals with the numerical determination of the energy release rate under mode I in carbon fibre reinforced composites (CFRC). Two different models are reviewed: the virtual crack closure technique (VCCT) and the Two-step Extension Method. The Two-step Extension Method needs two computational steps in order to calculate the energy release rate (G). The VCCT Method is able to provide ERR value only from one computational step. Results were compared with empirical data obtained from double cantilever beam (DCB) tests carried out on unidirectional AS4/8552 carbon/epoxy laminates. This study showed that, in a pure mode I state, results obtained via the Two-step Extension Method were in agreement with a straightforward calculation of the elastic energy variation in the system. As expected, results obtained from VCCT and Two-step Extension models converge as element length decreases. Regarding the comparison between experimental and numerical results, the study showed that a correction for testing devices compliance was needed to match both models.
